3. Domestic pig​The domestic pig (also swine, in some areas hog) is a large domesticated land mammal that traces its ancestry to the wild boar, and is considered a subspecies of the wild boar or a distinct species in its own right. It is likely the wild boar was domesticated as early as 13,000 BC in the Tigris River basin. Pigs are farmed for the consumption of their flesh; however, some cultures have religious dietary laws that forbid the consumption of pork, which is the name for pig meat.Read “Domestic pig” on English WikipediaRead “ブタ” on Japanese WikipediaRead “Domestic pig” on DBpedia